Maintenance of heat treatment heating equipment for wheel forging parts

The use, maintenance and repair of heat treatment equipment for wheel forging parts are important tasks that heat treatment operators often face. It is of great significance to use heat treatment equipment correctly and safely, and adopt reasonable maintenance and repair methods to enhance the service life of the equipment and ensure normal production. The following is a brief introduction to the use, maintenance and repair of common heat treatment heating equipment.


Regarding the maintenance of box-type resistance furnaces, newly installed, unused and newly overhauled box-type resistance furnaces should be energized and dried according to the prescribed method before use to thoroughly clean the moisture in the furnace bricks.


Maintenance personnel should check regularly whether the connecting screw and the ground screw of the furnace body are loose. In addition, forge personnel should regularly check and calibrate thermocouples, temperature control meters and other instrumentation.


Maintenance personnel should add lubricating oil regularly and quantitatively according to the mark on the equipment lubrication drawing to prevent mechanical action obstruction. Maintenance personnel should regularly clean the dust in the electric cabinet and control cabinet, and check whether the contacts of each contactor are in good contact. Maintenance personnel should regularly check the leakage and blockage of the gas, oil and water circuits to prevent the blockage and solve the leakage. Check and clean the filter and flow meter in each line.


The instrument operator should calibrate the temperature of the furnace in sufficient time, that is, heating the furnace to the common working temperature under no-load conditions, measuring the actual temperature in the furnace with standard instruments, and recording the indicating temperature of the temperature control instrument, so as to master the temperature measurement error of the temperature control instrument. The error value is expressed by subtracting the indicated temperature from the actual temperature. Therefore, the indicated temperature should be equal to the actual temperature minus the correction value. At the same time, the control instrument and thermocouple should be calibrated regularly, and the temperature should be calibrated at any time according to the need to prevent temperature deviation.


Maintenance personnel should regularly check whether the stove top and furnace are damaged, and timely repair any problems found.


The heat treatment operator shall periodically inspect and analyze the quenching oil and cleaning agent, and in the event of unsatisfactory performance, add or replace them according to the inspection results. Check the oil temperature circulation system regularly, check the washing system of the washing machine regularly to ensure the quenching quality and cleaning quality.


In the process of using the furnace, the workplace and equipment of the wheel forging parts factory should be kept clean, and the scale and carbon accumulation under the box furnace and around the electric heating element should be checked and cleaned regularly to prevent short circuit and other faults.